jmakepdfx – A Java in­ter­face to Ghostscript to con­vert PDF to PDF/X

The pack­age pro­vides Java GUI ap­pli­ca­tion that uses Ghostscript to
con­vert PDF files to PDF/X. There is a choice of CMYK or
greyscale pro­file. This uses Ghostscript’s
/pre­press set­ting, which is anal­o­gous to Acro­bat
Dis­tiller's “Pre­press Op­ti­mized” set­ting.